Similarities and difference between Class and structure in .NET.

Similarities:

• Both Class and Structures can have methods, variables and objects.
• Both can have constructor.
• Both are user defined types.

Differences:

• Structure being value type, the variables cannot be assigned to NULL. On the other hand, classes being reference type, a class variable can be assigned to NULL.
• Structure is allocated on a stack when instantiated, while Class is allocated on a heap.
• When a method is passed to a class, pass by reference is used. Pass by value is used for struts.
• A class can have a destructor.